3. Halve the avocado, core it, and slice the flesh thinly. Sprinkle all over with lemon juice.

4. Lay the toast on a work surface. Spread mayonnaise on 4 pieces. Add lettuce, turkey, and ham. Add a slice of toast to each stack. Add avocado, blue cheese, and tomatoes to each. Sprinkle with salt and pepper. Cover each stack with the 4 remaining pieces of toast.

5. Add a toothpick to each side of the sandwiches to hold them together. Using a long bread knife, halve the sandwiches. Sheryl Julian